61674497 has 2 divisors, whose sum is σ = 61674498. Its totient is φ = 61674496.

The previous prime is 61674491. The next prime is 61674499. The reversal of 61674497 is 79447616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55115776 + 6558721 = 7424^2 + 2561^2 .

It is a cyclic number.

It is not a de Polignac number, because 61674497 - 2⁶ = 61674433 is a prime.

Together with 61674499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61674491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30837248 + 30837249.

It is an arithmetic number, because the mean of its divisors is an integer number (30837249).

Almost surely, 2^61674497 is an apocalyptic number.

It is an amenable number.

61674497 is a deficient number, since it is larger than the sum of its proper divisors (1).

61674497 is an equidigital number, since it uses as much as digits as its factorization.

61674497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The square root of 61674497 is about 7853.3112124759. The cubic root of 61674497 is about 395.0953078782.

The spelling of 61674497 in words is "sixty-one million, six hundred seventy-four thousand, four hundred ninety-seven".